Pump or compressor for motor-vehicles and the like.



A. H. FEFELLE.

PUMP 0R COMPRESSOR FOR MOTOR VEHICLES AND THE LIKE.

APPLICATION F|LED APR.19, 1913.

Patented Apr. 24, 1917.

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ALBERT H. FEFELLE, 0F BUFFALO, NEW YORK, ASSIGNOR 0F TWO-THIRDS TOWILLIAM LA HODNY, 0F BUFFALO, NEW YORK.

FUMCP OR COMPRESSOR FOR MOTOR-VEHICLES AND THE LIKE.

Application filed April 19, 1913.

To all whom it may concern:

Be it known that I, ALBERT H. FEFELLE, a citizen of the United States,residing at Buffalo, in. the county of Erie and State of New York, haveinvented a new and useful Improvement in Pumps or Compressors forMotor-Vehicles and the like, of which the following is a specification.

This invention relates to pumps and more especially to an aircompression pump 1ntended to be mounted on an .automobile and capable ofbeing driven from the motor thereof, and used to supply compressed a1rfor any desired purpose, such as inflat ng the pneumatic tires of thevehicle, suppl'y ng compressed air for a starting devlce for the motor,or for any other purpose'for which compressed air may be found-useful.

The present invention provides a pump or compressor which is exceedinglysimple in construction and reliable in operation and is so designed thatit may be very easily applied to an automobile motor withoutnecessitating any changes in the latter. 1

Its construction is such that it may be operated from the dash-board ofthe car or from any other convenient exposed position, thereby avoidinengine hoo every time the device 1s to be used. In the preferred form ofthe invention the pump or compressor is mounted adjacent to the radiatorand cooling fan of the motor so as to be cooled by the latter wherebyits maximum efliciency as a compressor may be obtained.

In the accompan in drawings:

Figure 1 is a si e e evation of a typical automobile motor .having apreferred embodiment of the invention applied thereto, the radiator,hood and dash of the car being shown in section.

Fig. is a side elevation, partly in section,

Specification of Letters Patent.

the. necessity "for opening the 1s journaled in a bracket 18. The latterhave bolts located at this point either for Patented Apr. 24%, 1917.

Serial No. 762,202.

Fig; 7 is a section on line VHVH of Fig. 6. I

The numeral 1 designates an automobile motor which may be of anysuitable type, the one illustrated comprising four cylinders 2 and acrank case 3 in which operate the pistons, piston rods and cranks (notshown) for rotating the main driving shaft 4. The motor is inclosed bythe usual hood 5 at the front end of which is the radiator 6 and attherear end a dashZ. The motor shaft 4 has a forward extension 8 whichcarries a pulley 9. A bracket 10, secured to the engine frame, carries ashaft 11 on which is mounted a fan 12 for drawing air through theradiator 6 and driving it back through the hood. The shaft 11 carries apulley 13 which is driven from the pulley 9 by means of a belt 14-. Thepump or compressor 15 is 1 the. pulley 9. As shown, the pump com prisesa frame 16 fixed to a shaft 1'2 which may be secured to the, motor framein any suitable manner, as by bolts 19. These bolts may be providedespecially for securing the bracket 18 in position, but ordinarily thisis not necessary as most motors.

securing the cylinders to the crank case or for securlng the capon themain hearing, or for other llke purposes. If the motor is provided withsuch bolts, the bracket 18- M may be secured in position thereby andthus without necessitating any change in the construction of the motoritself. The pump or compressor proper comprises a cylinder 20 having alaterally projecting trunnion 21 at its upper end-which is journaled ina bearing 22 formed in a boss 23 at the upper end ofv the frame 16. Thetrunnion 21 may be held. in its bearing in any suitable manner, as bymeans of a cotter pin 24 passing, through a hole in the boss andengaging a notch 25 in the trunnion. The notch 25 is suflicientlyelongated, as shown in Fig. 7, to permit the necessary oscillatorymovement of the cylinder. One or more air inlet holes or ports 26 areformed in the walls of the cylinder at iction wheel or diskw ich' so-may be brought into direct engagementfwith the piston reaches the lowerlimit of its travel. -The cylinder is also provided in its upper endwith an outlet passage 27 in which is a suitable check valve. As shown,thecheck valve comprises a ball 28 normally held upon a seat 29 by aspring 30 which is retained inposition by a screwplug 31.

Obviously any other suitable form of valve may be used.

32 is a piston reciprocating in the cyl-' inder 20, it being preferablyprovided with a cup disk 33 of leather'or other suitable material tomake a close fit. The piston is provided at its lower end with anextension terminating in a bearing sleeve 34 inwhich is journaled acrank pin 35. The latter r0- jects from the side of a crank disk 36 Wich is journaled upon'a pin'37 projecting from the side of the frame 16.The extension portion of the piston 32 is cut away as indicated at 38,so as to clear the crank disk when the piston is down. In this way avery compact structure is produced. The crank disk 36, which may be ofany suitable construction, is preferably provided with a frictionbearing surface. As shown, the crank disk comprises a member 39 having acentral bearing. sleeve 40 upon which aremounted one or more disks 41 ofleather or other suitable material which are clamped position by a plate42 held in position by screws 43 or in any other suitable way."

The bearing pin 37 is preferably a plain cylindrical pin,'over the endof which the disk 36 may be slipped. The disk will be held in positionduring the operation of the pump by the ,pump piston, which slides inthe cylinder, the latter'being held in positidn by the cotter pin asabove described. Thus it will be seen that upon the removal of thecotter pin 24 the entire pump may be taken apart as the. cylinder andpiston may be removed and separated. and the crank disk36 may be takenoff. The pumpis driven by bringing the friction surface of the crankdisk into engagement. with any rotating part of the motor. In thepreferred construction shown, the crank disk is brought into drivingengagement with the periphery of the pulley 9, which drives the fanbelt. The proportions of thepump are such that it may be mountedbetweenthe runs of the fan belt without interfering with the operation of thelatter in any way, the crank disk engaging the'uncovered portion of thepulley 9. Means are preferably provided for moving the pump into and outof operative engagement with the pulley 9, these means beingcontrollable from the dash of the machine in the preferred embodiment ofthe invention. As shown, the shaft 17,has a lever 44 fixed thereto whichis connected by means of a rod or link. 45 to a movable block or nut 46screwing on the screwthreaded stem 47 of a hand wheel 48. The stem 47 isrotatably mounted dotted lines in Fig. 2. Obviously any other suitableconnections may be utilized for operating the pump in this manner.

The air compressed by the pump may be conducted to any suitable pointfor use orv storage. As shown, a pipe 50 leads from the outlet passage27 of the pump to a connection '51 on the dash of the machine. To

this connection a hose 52 may be attached for inflating the tires or theair may be otherwise utilized.

To operate the pump the hand wheel 48 is turned so as to draw the pumpdown and hold'the crank disk in engagement with the pulley 9, it beingunderstood that the motor 1 is in operation; The resulting rotation ofthe crank disk 36 reciprocates the piston 32 within the oscillatingcylinder 20. When the piston is in its lowest position, as shown in Fig.4, the ports 26 are uncovered, permitting the cylinder to fill with air.In its upward movement the piston first covers the ports 26 and thencompresses the air in the cylinder and forces it out through the passage27. The check valve 28 opens to-permit the outward passage of the airbut closes during the downward stroke of the piston. The cylinder 26 ispreferably thin-walled so that it will be rapidly cooled by the airdriven over it by the fan 12. This cooling greatly enhances theefiiciency of the pump when used as a compressor.

It will be seen that the entire device is of great simplicity ofconstruction, is positive, in operation, and may be attached to anordinary niotor'by any one without the "use of special tools and withoutnecessitating any changes in the motor itself; It is to be understoodthat while only one preor suction, as may be desired.

I claim as my invention:

A pump comprising a frame having a bearing recess therein, a cylinderhaving a trunnion mounted in said bearing recess, means for securingsaid trunnion in said .recess, a piston reciprocating in said cylinderbut capable of disconnection therefrom,a bearing pin carried by saidframe, a friction disk removably mounted upon said bearing pin andhaving a crank pin projecting from the side thereof, said piston wherebywhen said means for retaimng saidcylinder trunnion in said bearingrecess are released, said cylinder, piston and friction 1o disk may beseparated from said frame and from each other. I

Witness my hand, this 17th day of April, 1913.

' ALBERT H. FEFELLE. Witnesses: 1

EDMUND Qomcr Mosns, ADELINE L. McGm.

